Many of the country’s largest pharmaceutical companies, from Merck MRK3.35%increase; green up pointing triangle & Co. to Bristol-Myers Squibb BMY 2.64%increase; green up pointing triangle, are ...

Merck MRK-0.29 % decrease; red down pointing triangle is making a big bet that its new drug, approved Tuesday in the U.S. for a potentially fatal lung disease, will take the company a long way ...

Merck (MRK) shareholders are grumbling that they're being charged $20 for new Merck shares that are identical to the old ones in the merger with Schering-Plough. That's because Merck's lawyers ...

Merck on Wednesday agreed to buy privately held biotech EyeBio for as much as $3 billion, as it looks to diversify its portfolio of experimental drugs with treatments for eye diseases.

Merck & Co Inc said on Monday it will acquire cancer drug developer Imago BioSciences Inc for a total equity value of $1.35 billion to expand its portfolio of blood disorder treatments.